public IAggregateRoot LoadById(Guid id)
{
DetachedCriteria boundaryCriteria = DetachedCriteria.For <Event>()
.SetProjection(Projections.Id())
.Add(Expression.Eq("IsSnapshot", true))
.Add(Expression.Eq("EntityId", id))
.AddOrder(new Order("SequenceNumber", false))
.SetFirstResult(0)
.SetMaxResults(1);
ICriteria criteria = _readSession.CreateCriteria(typeof(Event))
.Add(Expression.Eq("EntityId", id))
.Add(Subqueries.PropertyGe("SequenceNumber", boundaryCriteria))
.AddOrder(new Order("SequenceNumber", true));
IList <Event> events = criteria.List <Event>();
if (events.Count < 1)
{
throw new ArgumentException(string.Format("Entity with id {0} not found.", id));
}
IAggregateRoot lastSnapshot = (IAggregateRoot)events[0].Data;
lastSnapshot.Id = id;
lastSnapshot.LoadFromEventStream(events.Skip(1).Select(x => x.Data));
lastSnapshot.Version = events.Last().Version;
_trackedObjects.Add(lastSnapshot);
return(lastSnapshot);
}
